Back to EveryPatent.com
United States Patent | 5,060,554 |
Aharon | October 29, 1991 |
A sighting system for arming a gun mounted on a self-propelled platform. The system comprising a periscope with a collimator having a source of monochromatic light and a swivelling mirror, and in association therewith an auxiliary sighting system so devised that a reticle or spot is projected from the collimator simultaneously into the lines of sight of the gunner and the commander. The auxiliary sighting system comprises a first dichroic mirror or beam splitter facing the head mirror and a second dichroic mirror or beam splitter vertically removed from the first one so as to be located in the commander's field of vision; and means for transmitting light between these two dichroic mirrors or beam splitters.
Inventors: | Aharon; Oren (Haifa, IL) |
Assignee: | The State of Israel Ministry of Defence, Rafael Armament Development (Tel Aviv, IL) |
Appl. No.: | 575073 |
Filed: | August 30, 1990 |
Sep 06, 1989[IL] | 91539 |
Current U.S. Class: | 89/41.19; 89/36.14; 359/402; 359/403 |
Intern'l Class: | F41G 001/40 |
Field of Search: | 89/41.06,41.19,41.21,41.22,36.08,36.14 250/347 356/488,253,254,255 350/540,541,542 |
2492353 | Dec., 1949 | Brackett | 356/254. |
3918813 | Nov., 1975 | Rossiter | 356/153. |
4318330 | Mar., 1982 | Hausenblas | 89/41. |
Foreign Patent Documents | |||
1151954 | Jul., 1963 | DE | 350/541. |
2926973 | Jan., 1981 | DE | 350/542. |
1378852 | Dec., 1974 | GB | 356/255. |
Walker, Periscope Optics and the High-Powered Laser, Optical Systems Engineering, vol. 193, 1979, pp. 116-120. |